CVE-2026-15759

MEDIUM

Themeatelier ChatHelp <= 3.5.1 - Authenticated Stored Cross-Site Scripting

Title source: manual
STIX 2.1

Description

The ChatHelp – Click to Chat Button, WooCommerce Chat to Order & Floating Chat Form plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'number' and 'group' Shortcode Attributes in all versions up to, and including, 3.5.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

References (7)

Core 7

Scores

CVSS v3 6.4
EPSS 0.0020
EPSS Percentile 10.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-79
Status published
Products (1)
themeatelier/ChatHelp – Click to Chat Button, WooCommerce Chat to Order & Floating Chat Form < 3.5.1
Published Jul 17, 2026
Tracked Since Jul 17, 2026